Ruling · Rukmiṇī Dvādaśī · 1977

Saturday 30 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 179 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Saturday 30 April

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

48 of 48 minutes covered

Midday of Sunday 1 May

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

0 of 48 minutes covered

Dvādaśī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 08:52 on Sat 30 Apr to 06:41 on Sun 1 May.

    1977-04-30T00:52:18Z → 1977-04-30T22:40:45Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 30th, 11:52–12:40 on the 1st.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 30th and 0 of 48 on the 1st.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 10763 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1977: Saturday 30 April.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1977 falls on Saturday 30 April. Dvādaśī runs from 08:52 on Sat 30 Apr to 06:41 on Sun 1 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1977/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 30 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 30 Apr
compat-drikpanchangComparison profileSat 30 Apr
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/rukmini-dvadashi · ruleset 2026.3-draft

Month
Vaiśākha, amānta
Pakṣa · aṅga
Śukla · Dvādaśī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 102

“S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīMadhyāhna 30thCoveredMadhyāhna 1stCoveredRuled
Los Angeles17:52 → 15:4112:2648 min12:260 min30 Apr
Chicago19:52 → 17:4112:2448 min12:240 min30 Apr
Jersey City20:52 → 18:4112:3048 min12:300 min30 Apr
Port of Spain20:52 → 18:4111:3948 min11:390 min30 Apr
London01:52 → 23:4112:3448 min12:340 min30 Apr
Durban02:52 → 00:4111:2948 min11:290 min30 Apr
Dubai04:52 → 02:4111:5248 min11:520 min30 Apr
Delhi06:22 → 04:1111:5448 min11:540 min30 Apr
Kolkata06:22 → 04:1111:1048 min11:100 min30 Apr
Singapore08:22 → 06:1112:0848 min12:080 min30 Apr
Sydney10:52 → 08:4111:2848 min11:280 min30 Apr
Suva12:52 → 10:4111:390 min11:390 min1 May
Profile · tradition
pac-rp@2026.1 · smarta
Rule
rukmini-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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